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The AAPG/Datapages Combined Publications Database

Showing 169 Results. Searched 189,727 documents.

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Hybrid COV Interpolation & Procesing: A Case Study on NW Tunu Transition Zone, Indonesia

Vishal Kumar, Doddy Biramandita, Wayne Zanussi, Jacques Bonnafe, Natalia Anggriani, M-Adam Cepi

Indonesian Petroleum Association

... offset interpolation and 5D common offset vectors (COV) interpolation. Combining them together may give best of both worlds in terms of data quality, data...

2016

EXTENDED ABSTRACT: Eigenimage analysis of common offset sections: Pre-stack data compression and S/N ratio enhancement

M. D. Sacchi, T. J. Ulrych, C. Magnuson

CSPG Special Publications

...EXTENDED ABSTRACT: Eigenimage analysis of common offset sections: Pre-stack data compression and S/N ratio enhancement M. D. Sacchi, T. J. Ulrych, C...

1998

Abstract: Fracture Detection in the Migrated Domain: Practical Aspects of Prestack Time Migration of Azimuthally-limited 3D Land Data Volumes; #90171 (2013)

Mike Perz, Juefu Wang, and Ye Zheng

Search and Discovery.com

... prestack migration: (i) azimuth sectoring; (ii) common offset vector gathering; and (iii) prestack interpolation. Introduction As the focus continues...

2013

Abstract: 5D Interpolation and COV Migration: An Ideal Marriage; #90174 (2014)

Mike J. Perz and Peter W. Cary

Search and Discovery.com

... configuration gives rise to an ideal input data volume for common offset-and-azimuth Kirchhoff prestack migration, we assert that interpolation onto this COV...

2014

The Application of Image Processing Techniques for Complex Structures

V. Sudhakar, I. T. McMahon

Indonesian Petroleum Association

..., high-fold data is usually decimated before migration. An altenate, less efficient implemention is to apply DMO first followed by common offset migration...

1987

Abstract: Wave Equation Depth Migration with Image Gathers in Offset Domain; #90211 (2015)

Jianhua Pan

Search and Discovery.com

... Ehinger, A., Lailly, P., and Marfurt, K. J., 1996, Green’s function implementation of common-offset wave-equation migration: Geophysics, 61, 1813-1821...

2015

Abstract: Prestack Signal Enhancement by Non-hyperbolic MultiFocusing; #90187 (2014)

Evgeny Landa, Alex Berkovitch, and Kostya Deev

Search and Discovery.com

... model building etc. We propose to employ the MultiFocusing idea to achieve this goal. A local common offset MultiFocusing approximation...

2014

Abstract: Migration Velocity Analysis of Incomplete Data Using LSPSM CIGs; #90174 (2014)

Abdolnaser Yousefzadeh, John C. Bancroft, and Gary F. Margrave

Search and Discovery.com

... coherencies on common image gather (CIG)s is extended to the least squares prestack migration (LSPSM) CIGs. It is shown that when the data are incompletely...

2014

Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)

Peter W. Cary, Albert Zhang

Search and Discovery.com

... of a converted-wave seismic trace, the regular processing flow of NMO plus DMO and poststack migration can have difficulty achieving an optimal image...

2015

Hybrid 3D Marine Towed-Streamers and Ocean-Bottom Nodes Survey - Challenges and Solutions for Seismic Data Processing and Imaging

Wai Leng Cheah, Wong Li Ming Joyce, Evonne Hooi Rong Yu, Artem Sazykin, Gavin Menzel-Jones

Indonesian Petroleum Association

... and produces 260-fold common midpoints (CMPs), while the streamer data (and corresponding common offset migration) produce 80-fold CMPs. This difference...

2019

Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)

J. Patrick Butler and Randy Kolesar

Search and Discovery.com

... of the reflector at the CDP. Even if CDPs are combined it is still a small data subset that can be repeatedly stacked, or common offset stacked...

2014

Complex Model Building using Objective Construction of Curve Ray Time Migration Moveout with Geologic Constraints, #41596 (2015).

Kerry Stinson, Shlomo Levy, Edward Crase, Wai-Kin Chan

Search and Discovery.com

...)). The efficacy of the derived imaging velocity is seen also from the common offset migration gathers (Figure 5) which are quite flat. A second run...

2015

Abstract: Multioffset Ground Penetrating Radar … Lessons Learned for Improved Geological and Archaeological Imaging and Interpretation; #90211 (2015)

Brooke Berard and Jean-Michel Maillol

Search and Discovery.com

... as an analogue. Multioffset data offers numerous benefits over common offset data, such as improved depth penetration, increased signal-to-noise ratio...

2015

Abstract: An Azimuthal-AVO-Compliant 3D Land Seismic Processing Flow; #90171 (2013)

David Gray, Darren Schmidt, Nirupama Nagarajappa, Charles Ursenbach, and Jon Downton

Search and Discovery.com

...., 2001). 2. Azimuthal spherical divergence correction (Xu and Tsvankin, 2006). 3. 5D interpolation (Trad et al., 2005). 4. Migration of Common Offset...

2013

A Time Migration Before Stack

Richard Cooper, Malcolm Hobson

Geological Society of Malaysia (GSM)

... for the MOVES sequence. Note that the DMO and migration are implemented in the common offset domain. In this way the operators are not being applied across...

1991

Wave Equation Shot Migration as a Ground Roll Filter.

Francisco Ortigosa, Pedro Muñoz

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

..., not noticeable when the level of Ground Roll Noise is lower. Wave Equation Shot Migration as a Ground Roll Filter Figure 5: Left. 2D Seismic data acquired...

2008

Seismic Imaging through Outcropping Carbonates: An Example from the Canadian Rocky Mountains, , #41533 (2015).

Yong Hua, Don C. Lawton

Search and Discovery.com

... the missing traces on the single common-offset gather before PSTM. Pre-stack Kirchhoff time migration was conducted on the common-offset domain by using...

2015

Abstract: Towards an Optimal Workflow for Azimuthal AVO; #90171 (2013)

David Gray and Shangxu Wang

Search and Discovery.com

... to estimates of Bani derived from migration of Common Offset Vectors (COVs), which seem to be a more natural way of maintaining azimuthal information through...

2013

Abstract: Improving the Image: 5D Interpolation and COV Gathering of a MegaBin’ Survey; #90171 (2013)

Darren P. Schmidt, David Gray, Xinxiang Li, Daniel Trad, and Jon Downton

Search and Discovery.com

... Basin (WCSB). Two technologies are examined here: 5D interpolation and pre-stack time migration (PreSTM) of Common Offset Vectors (COV’s). MegaBin surveys...

2013

Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia

Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran

Indonesian Petroleum Association

... common offset prestack depth migration is performed. The migration routine provides a stacked depth section for structural interpretation along with a set...

2000

ABSTRACT: TUTORIAL: IMAGING THROUGH SHALLOW GAS, DIVING WAVE

Brian Broussard, Luis Canales, Charles Carvill, Lee Lu, Juan Perdomo, Chung-Chi Shih, Sherman Yang, Peter Melville, Mehmet Tanis

Geological Society of Trinidad & Tobago

... on seismic shot and common-offset gathers, and maps of sail-line pick times and total-survey common-offset pick times to assure the quality of pick times. Pre...

2007

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